<template>
    <div>
        <!--头部滚动条-->
        <div id="slider" class="mui-slider">
            <div id="sliderSegmentedControl" class="mui-scroll-wrapper mui-slider-indicator mui-segmented-control mui-segmented-control-inverted">
                <div class="mui-scroll">
                    <!--绑定样式类-->
                    <a :class="['mui-control-item',item.id==0?'mui-active':'']" v-for="item in cates" @tap="getPhotoListByCateId(item.id)"  :key="item.id" >
                        {{item.title}}
                    </a>
                </div>
            </div>

        </div>
        <!--中间图片展示部分-->
        <ul class="photo-list">
            <!--注意id需要匹配-->
            <router-link v-for="item in list" :key="item.id" :to="'/home/photoinfo/'+item.id" tag="li">
                <img v-lazy="item.img_url">
                <div class="info">
                    <h1 class="info-title">{{item.title}}</h1>
                    <div class="info-body">{{item.zhaiyao}}</div>
                </div>
            </router-link>
        </ul>
    </div>
</template>

<script>

   import mui from '../../lib/mui/js/mui.min.js'


export default {
    data(){
        return{
            cates:[],//所有分类的列表数组
            list:[],
        }
    },
    created(){
      this.getAllCategory();
      //默认进来时自动请求所有图片
      this.getPhotoListByCateId(0);

    },
    mounted(){
        mui('.mui-scroll-wrapper').scroll({

        });
    },

    methods:{
        getAllCategory(){
            this.$http.get('api/getimgcategory').then(result=>{
                if(result.body.status==0){
                    result.body.message.unshift({
                        title:"全部",
                        id:0
                    });
                    this.cates=result.body.message;
                }
            })
        },
        getPhotoListByCateId(cateid){
            //根据分类ID,获取图片列表
            this.$http.get('api/getimages/'+cateid).then(result=>{
                if(result.body.status===0){
                    this.list=result.body.message;

                }else{
                    Toast('获取图片列表失败')
                }
            })
        }
    }
}

</script>

<style lang="scss" scoped>

*{
    touch-action: pan-y;
}
.photo-list{
    list-style: none;
    margin: 0;
    padding: 10px;
    padding-bottom: 0;
    li{
        background-color: #ccc;
        text-align: center;
        margin-bottom: 10px;
        box-shadow: 0 0 9px #999;
        /*父相*/
        position: relative;
        img{
            width: 100%;
            vertical-align:middle;
        }
        img[lazy=loading] {
            width: 40px;
            height: 300px;
            margin: auto;
        }
        .info{
            color: white;
             text-align: left;
            /*子绝*/
            position: absolute;
            line-height: 14px;
            bottom: 0;
            background-color: rgba(0,0,0,0.4);
            max-height: 80px;
            overflow: hidden;

             .info-title{
                 font-size: 14px;
             }
             .info-body{
                 font-size: 12px;
             }
         }
    }


}



</style>